Home / 28,436.92-42,637.13-11,808.43

Finding the Fourth Proportional to 28,436.92, 42,637.13 and 11,808.43

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Solution

The fourth proportional to 28,436.92, 42,637.13 and 11,808.43 is: 17,705.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,436.92 : 42,637.13 = 11,808.43 : x
  2. Step 2: Convert to fraction form
    28,436.92/42,637.13 = 11,808.43/x
  3. Step 3: Cross multiply
    28,436.92x = 42,637.13 × 11,808.43
  4. Step 4: Simplify right side
    28,436.92x = 503,477,565.01
  5. Step 5: Solve for x
    x = 503,477,565.01/28,436.92
  6. Step 6: Final answer
    x = 17,705.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.